模拟试题一第二部分：完形填空(共20小题；每小题1.5分，满分30分)阅读下面短文，掌握其大意，然后从2140各题所给的四个选项(A、B、C和D)中，选出最佳选项。Manners nowadays in big cities like London are particularly non-existent. Its 21 for a big, strong schoolboy to push an elderly woman aside for the last 22 seat on the bus, much less stand up and offer his seat to her, as he ought to. In fact, it is a 23 to note that if a man does offer his seat to an older woman, it is nearly always a man of the older 24 . This question of 25 seats in public tra
